Halk sağlığı için tehdit oluşturan fenolün sulardan düşük maliyetli bir aktif karbon ile giderimi

Yıl 2017, Cilt: 74 Sayı: EK-1, 49 - 54, 01.12.2017

Behzat Balcı Fatma Elçin Erkurt Emine Su Turan

Öz

Bu çalışmada, sucul canlılar ve halk sağlığı için tehdit oluşturan fenolün sulardan gideriminde, düşük maliyetli bir adsorbent olarak Eucalyptus camaldulensis kökenli aktif karbon ECAK kullanılmıştır. Adsorpsiyon süreci üzerine temas zamanı, pH, sıcaklık, ECAK dozu ve başlangıç fenol konsantrasyonu gibi çeşitli parametrelerin etkisi araştırılmıştır. Yapılan çalışmalar, adsorpsiyon süreci üzerine pH’ın, ECAK dozunun ve başlangıç fenol konsantrasyonunun önemli ölçüde etki ettiğini göstermiştir. Adsorpsiyon kapasitesi 500 mg/L fenol için pH 5’de, 20 °C’de ve 1 gram ECAK dozu ile 107,25 mg/g olarak bulunmuştur. Maksimum adsorpsiyon kapasitesi Langmuir izotermi tarafından 136,5 mg/g olarak tahmin edilmiştir. Freundlich izotermi adsorpsiyon sürecini 0,997 korelasyon katsayısı ile başarılı bir şekilde tanımlanmıştır

Anahtar Kelimeler

Eucalyptus camaldulensis, fenol, adsorpsiyon, langmuir, freundlichi

Removal of phenol, threat to public health, from water by a low cost activated carbon

Öz

In this study, a low cost activated carbon which based on Eucalyptus camaldulensis barks ECAC was used for the removal of phenol, threat to aquatic organisms and public health, from water. The effect of contact time, temperature, ECAC dosage and initial phenol concentration on adsorption process were investigated. It was found that pH, ECAC dosage and initial phenol concentration had a significant effect on adsorption process. The adsorption capacity was found to be 107.25 mg/g for 500 mg/L phenol at pH 5, 20 °C with 1 g ECAC dosage. The maximum adsorption capacity was predicted 136.5 mg/g by Langmuir isotherm. Freundlich isotherm described the adsorption process successfully by a 0.997 correlation coefficient

Anahtar Kelimeler

Eucalyptus camaldulensis, phenol, adsorption, langmuir, freundlich

Kaynakça

• 1. Moussavi G, Mahmoudi M, Barikbin B. Biological removal of phenol from strong wastewaters using a novel MSBR. Water Res, 2009; 43: 1295–302.
• 2. Mohammadi S, Kargari A, Sanaeepur H, Abbassian K, Najafi A, Mofarrah E. Phenol removal from industrial wastewaters: A short review. Desalin. Water Treat, 2014; 1–20.
• 3. Mostafa, MR, Sarma, SE, Yousef, AM. Removal of organic pollutants from awueoous solution: Part 1. Adsorption of phenols by activated carbon. Idian Journal of Chem, 1989; 28(A): 946-8.
• 4. Ahalya N, Ramachandra TV, Kanamadi RD. Biosorption of heavy metals. Res J Chem Environ, 2003; 7: 71–8.
• 5. Tamer, MA, Ismail, A, Mohd, AA, Ahmad, AF. Cadmium removal from aqueous solution using microwaved olive stone activated carbon. J Environ Chem Eng, 2013; 1(5): 89-99.
• 6. Aksu, A, Sag, Y, Nourbakhsh, M, Kutsal. T. Atık sulardaki bakır, krom ve kurşun iyonlarının çeşitli mikroorganizmalarla adsorplanarak giderilmesinin karşılaştırmalı olarak incelenmesi. Turkish J Eng Env Sci, 1993; 19: 285-29.
• 7. Behzad, H, Susana, RC, Mohammad, AA, Mohammad, A, Inderjee, TT, Shilpi, A, et al. Kinetics and thermodynamics of enhanced adsorption of the dye AR 18 using activated carbons prepared from walnut and poplar woods, J Mol Liq, 2015; 208: 99- 105.
• 8. Dabrowski , Podkos´cielny P, Hubicki Z, Barczak M. Adsorption of phenolic compounds by activated carbon—a critical review A. Chemosphere, 2005; 58: 1049–70.
• 9. Benefield, LD, Judkins, JF, Weand, BL. Process chemistry for water and wastewater treatment. Prentice-Hall, Inc, Englewood Cliffs, New Jersey, 1982.
• 10. Chiou, MS, Li, HY. Equilibrium and kinetic modeling of adsorption of reactive dye on cross-linked chitosan beads. J Haz Mat, 2002; 93(2): 233-48.
• 11. Wen PC, Wei G, Xinyu C, Jing H, Rui FL. Phenol adsorption equilibrium and kinetics on zeolite X/ activated carbon composite. J Taiwan Inst Chem E, 2016; 62: 192-8.
• 12. Mohammad HD, Masoome M, Mahmood A, Gordon M, Kaan Y, Ahmad BA et al. High-performance removal of toxic phenol by single-walled and multi-walled carbon nanotubes: Kinetics, adsorption, mechanism and optimization studies. J Ind Eng Chem, 2016; 35: 63-74.
• 13. Babak K, Mahsa J, Mohammad R, Amirhosein R, Ali AB. Development of response surface methodology for optimization of phenol and p-chlorophenol adsorption on magnetic recoverable carbon. Micropor. Mesopor Mat, 2016; 23: 192-206.
• 14. Roxana I, Marcela S, Cornelia P, Cosmin L. Single and simultaneous adsorption of methyl orange and phenol onto magnetic iron oxide/carbon nanocomposites. Arabian J Chem, 2016; Baskıda.
• 15. Liliana G, Juan CM. Study of adsorption of phenol on activated carbons obtained from eggshells. J Anal Appl Pyrol, 2014; 106: 41-4-7.